package com.feng.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.feng.common.utils.PageUtils;
import com.feng.common.utils.Query;
import com.feng.gulimall.product.dao.SkuInfoDao;
import com.feng.gulimall.product.entity.SkuImagesEntity;
import com.feng.gulimall.product.entity.SkuInfoEntity;
import com.feng.gulimall.product.entity.SpuInfoDescEntity;
import com.feng.gulimall.product.service.*;
import com.feng.gulimall.product.vo.SkuItemSaleAttrVo;
import com.feng.gulimall.product.vo.SkuItemVo;
import com.feng.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {
    @Autowired
    private SkuImagesService imagesService;
    @Autowired
    private SpuInfoDescService spuInfoDescService;
    @Autowired
    private AttrGroupService attrGroupService;
    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    private ThreadPoolExecutor executor;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
        this.baseMapper.insert(skuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {

        QueryWrapper<SkuInfoEntity> queryWrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key) && !"0".equalsIgnoreCase(key)) {
            queryWrapper.and((wrapper) -> {
                wrapper.eq("sku_id", key).or().like("sku_name", key);
            });
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            queryWrapper.eq("catalog_id", catelogId);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            queryWrapper.eq("brand_id", brandId);
        }

        String min = (String) params.get("min");
        if (!StringUtils.isEmpty(min)) {
            queryWrapper.ge("price", min);
        }

        String max = (String) params.get("max");

        if (!StringUtils.isEmpty(max)) {
            try {
                BigDecimal bigDecimal = new BigDecimal(max);
                if (bigDecimal.compareTo(BigDecimal.ZERO) == 1) {
                    queryWrapper.le("price", max);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }


        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                queryWrapper
        );

        return new PageUtils(page);
    }

    @Override
    public List<SkuInfoEntity> getSkusByspuId(Long spuId) {
        LambdaQueryWrapper<SkuInfoEntity> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(SkuInfoEntity::getSpuId,spuId);
        List<SkuInfoEntity> list = this.list(queryWrapper);
        return list;
    }

    @Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo=new SkuItemVo();
        //1.sku基本信息获取
        CompletableFuture<SkuInfoEntity> infoFuture=CompletableFuture.supplyAsync(()->{
            SkuInfoEntity info = getById(skuId);
            skuItemVo.setInfo(info);
            return info;
        },executor);

        CompletableFuture<Void> SaleAttrFuture = infoFuture.thenAcceptAsync(res -> {
            //3.获取spu销售属性组合
            List<SkuItemSaleAttrVo> skuItemSaleAttrVos = skuSaleAttrValueService.getSaleAttrsBySpuId(res.getSpuId());
            skuItemVo.setSaleAttr(skuItemSaleAttrVos);
        }, executor);
        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync(res -> {
            //4.获取spu 的介绍
            SpuInfoDescEntity descEntity = spuInfoDescService.getById(res.getSpuId());
            skuItemVo.setDesc(descEntity);
        }, executor);
        CompletableFuture<Void> baseAttrFuture = infoFuture.thenAcceptAsync(res -> {
            //5.获取spu的规格参数信息
            List<SpuItemAttrGroupVo> spuItemAttrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
            skuItemVo.setGroupAttrs(spuItemAttrGroupVos);
        }, executor);
        //2.sku图片信息
        CompletableFuture<Void> imagesFuture = CompletableFuture.runAsync(() -> {
            List<SkuImagesEntity> images = imagesService.getImagesBySkuId(skuId);
            skuItemVo.setImages(images);

        }, executor);

        //等待所有任务都完成
       CompletableFuture.allOf(SaleAttrFuture,descFuture,baseAttrFuture,imagesFuture).get();
         return  skuItemVo;
    }
}
